holograph

Meanings

1. 1
   noun

   a document written entirely in the handwriting of the person named as its author or signer

   The will was a holograph, written and signed in the doctor's own hand.

2. 2
   noun

   a photographic record used to reconstruct a three-dimensional image; a hologram

   When illuminated by a laser, the holograph produced a three-dimensional image.

From Greek holos, 'whole,' + graphos, 'written.' The legal and manuscript sense emphasizes that the whole document is in the author's own hand. The optical sense was later formed on the same elements for a record containing the complete wavefront information needed to reconstruct an image.

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